1960s goldtone prong set marquise purple & lime green center stones with round alternating regular and blue aurora borealis accent stones necklace with hook clasp. Marked "Hobé" with a © over the o.  Lying flat it measures 6 inches long by 5 inches wide. Largest interior circumference is about 16 inches. Condition: Rhinestones are in great condition, but there is some darkening/wear to metal on the back.